Delete unused neutron port
Delete unused neutron port

For purpose of creating fake baremetal nodes environment for ironic
functional/integration testing the unused neutron port to be created.
Adding the removal part and helpful comments.

Change-Id: I855ba1dbbf13f343d513ba387716996d6e4c20a6

mmasaki/devstack,avvocatodemarchis/devstack,promptworks/devstack,pacinete/devstack,pczerkas/devstack,promptworks/devstack,TwinkleChawla/devstack,affo/devstack,ozamiatin/devstack,bq-xiao/devstack,group-policy/devstack,sc68cal/devstack,richliu/devstack,varunarya10/devstack,eharney/devstack,mmasaki/devstack,NaokiMiyata/devstack,Juniper/devstack,nawawi/openstack,mc2014/devstack,group-policy/devstack,ozamiatin/devstack,kplus/devstack-moonshot,williamthegrey/devstack,atulpatil301/devstack,bljgaurav/openstack-test,mssumanth/devstack,richliu/devstack,sc68cal/devstack,jamielennox/devstack,varunarya10/devstack,srics/devstack,sequenceiq/devstack,neerja28/Devstack_GlusterFS,olivierlemasle/devstack,neerja28/Devstack_GlusterFS,vsham20/devstack,HPCHub/devstack,pombredanne/devstack,costingalan/devstack,nuxeh/devstack,flavio-fernandes/devstack,Mahito/devstack,affo/devstack,thomasem/devstack,dirkmueller/devstack,atulpatil301/devstack,kplus/devstack-moonshot,LoHChina/devstack,mc2014/devstack,liuquansheng47/devstack,CloudServer/devstack,parul24/devstack,pczerkas/devstack,samgoon/devstack,BSJAIN92/OpenStack,herrsechs/devstack,rushiagr/devstack,pombredanne/devstack,HPCHub/devstack,dtroyer/devstack,parul24/devstack,costingalan/devstack,andrewrothstein/devstack,bljgaurav/openstack-test,noironetworks/devstack,j4/devstack,Mahito/devstack,eshnil2000/devstack,pacinete/devstack,wenhuizhang/devstack,vsham20/devstack,j4/devstack,bswartz/devstack,nuxeh/devstack,bswartz/devstack,wenhuizhang/devstack,dirkmueller/devstack,olivierlemasle/devstack,vishnugonela/devstack,eharney/devstack,upadhyay-prashant/devstack,bigswitch/devstack,CloudServer/devstack,TwinkleChawla/devstack,sequenceiq/devstack,flavio-fernandes/devstack,innodee/openstackk,mssumanth/devstack,noironetworks/devstack,tianweizhang/devstack,vishnugonela/devstack,BSJAIN92/OpenStack,herrsechs/devstack,andrewrothstein/devstack,nawawi/openstack,virtualopensystems/devstack,bigswitch/devstack,LoHChina/devstack,upadhyay-prashant/devstack,tianweizhang/devstack,dtroyer/devstack,samgoon/devstack,openstack-dev/devstack,thomasem/devstack,prithivm/branch01,rushiagr/devstack,NaokiMiyata/devstack,avvocatodemarchis/devstack,liuquansheng47/devstack,openstack-dev/devstack,bq-xiao/devstack,prithivm/branch01